Elastomeric amorphous olefin terpolymer

Abstract

The present invention is an elastomeric polyolefin terpolymer comprising about 5 to 25 weight percent ethylene units, from greater than about 5 to about 40 weight percent hexene units, and about 35 to less than about 90 weight percent propylene units, wherein the total weight percent of monomer units equals 100 percent. The high molecular weight terpolymer is amorphous, is elastomeric, has a melt flow rate of about 0.01 to 500 grams per 10 minutes and has a tensile set of about 65 to 120 percent, according to ASTM D-412.

What is claimed is: 
     
       1. A polyolefin terpolymer comprising about 5 to 25 weight percent ethylene units, from greater than about 5 to about 40 weight percent hexene units, and about 35 to less than about 90 weight percent propylene units; wherein the total weight percent of monomer units equals 100 percent; further wherein said terpolymer is elastomeric, is amorphous, has a melt flow rate of about 0.01 to 500 grams per 10 minutes (ASTM D-1238 condition F) and has a tensile set of about 65 to 120 percent, according to ASTM D-412. 
     
     
       2. The terpolymer of claim 1 comprising from greater than 10 to about weight percent ethylene units, from greater than 10 to about 40 weight percent hexene units, and about 35 to 85 weight percent propylene units. 
     
     
       3. The terpolymer of claim 1 comprising about 8 to 20 weight percent ethylene units, about 8 to 35 hexene units, and about 40 to 90 propylene units. 
     
     
       4. The terpolymer of claim 1 wherein the melt flow rate is about 1 to 100 grams per 10 minutes. 
     
     
       5. The terpolymer of claim 1 wherein said terpolymer has a tensile set of about 65 to 100 percent. 
     
     
       6. An article of manufacture made from the terpolymer of claim 1 selected from the group consisting of extruded goods, molded goods, films, and fibers. 
     
     
       7. An article of manufacture comprising a substrate having a coating of the terpolymer of claim 1.